Download User manual for PD-350 / PD-351 / PD-352 (digital

PD-35x Series
PD-350
PD-351
PD-352
Digital Multimeter
0 MI2107
SAFETY NOTES
Read the user’s manual before using the equipment, mainly
"SAFETY RULES" paragraph.
on the equipment means "SEE USER’S
The symbol
MANUAL". In this manual may also appear as a Caution or
Warning symbol.
WARNING AND CAUTION statements may appear in this
manual to avoid injury hazard or damage to this product or
other property.
USER'S MANUAL VERSION
Version
Date
1.0
November 2015
SAFETY RULES
*
The safety could not be assured if the instructions
for use are not closely followed.
*
This equipment can be used in Overvoltage Category
III
installations
and
Pollution
Degree
2
environments.
*
When using some of the following accessories use only
the specified ones to ensure safety:
One pair test leads
*
*
*
Review the state of the test ends before its use.
*
Use this instrument under the specified environmental
conditions.
*
The user is only authorised to:
Observe all specified ratings of measurement.
Remember that voltages higher than 60 V DC or 33 V
AC rms are dangereus.
Battery replacement
Fuses
*
On the Maintenance section proper instructions are
given.
*
Any other change on the equipment should be carried out
by qualified personnel.
*
Follow the cleaning conditions
Maintenance paragraph.
described
in
the
November 2015
*
Symbols related with safety:
Descriptive Examples of Over-Voltage Categories
Cat I
Cat II
Low voltage installations isolated from the
mains.
Portable domestic installations.
Cat III
Fixed domestic installations.
Cat IV
Industrial installations.
November 2015
TABLE OF CONTENTS
1 Introduction ...............................................................................1
1.1
Features ..................................................................................1
2 Setting Up ..................................................................................2
2.1
General Inspection ....................................................................2
2.2
Install the Batteries ...................................................................3
2.3
Adjusting the Tilt Stand .............................................................4
2.4
Power On .................................................................................4
2.5
Sleep Mode ..............................................................................4
2.6
Backlight Control.......................................................................5
2.7
Selecting the Range ..................................................................5
2.8
Description...............................................................................6
3 Measurements .......................................................................... 12
3.1
Measuring AC or DC Voltage ..................................................... 12
3.2
Measuring Resistance .............................................................. 13
3.3
Testing Diodes ........................................................................ 13
3.4
Testing for Continuity .............................................................. 14
3.5
Measuring Capacitance ............................................................ 15
3.6
Measuring Frequency............................................................... 16
3.7
Measuring Transistor ............................................................... 16
3.8
Measuring Temperature ........................................................... 17
3.9
Measuring DC or AC Current ..................................................... 17
4 Tools......................................................................................... 20
4.1
Data Hold Mode ...................................................................... 20
4.2
Capturing Max. and Min. Values ................................................ 20
4.3
Making Relative Measurements ................................................. 21
4.4
Buzzer Feature ....................................................................... 21
5 Bluetooth Function (PD-351 and PD-352) ................................ 23
5.1
System Requirements of Mobile Devices .................................... 23
5.2
Install the application software ................................................. 23
5.3
How to Connect ...................................................................... 24
5.4
User Interface......................................................................... 27
6 Operations................................................................................ 29
7 Technical Specifications ........................................................... 33
8 Maintenance ............................................................................. 37
8.1
Cleaning the multimeter........................................................... 37
8.2
Replacing the battery .............................................................. 37
8.3
Fuse replacement.................................................................... 38
November 2015
Digital Multimeter
PD-35x Series
1 Introduction
1.1
•
•
Features
Data transferring via Bluetooth, interacting with
mobile device to read measurements, analyze via
special chart mode, remote control, voice-out feature;
voice
warning
supported,
which
enhances
measurement safety (only in PD-351 and PD-352).
5
digit reading, achieving higher measurement
6
1
3
or 3
digit counterparts.
accuracy than 3
2
4
3
•
Larger display, easier data-reading; analog bar graph
is displayed synchronously.
•
Connect simultaneously
supported via mobile APP.
•
Temperature measuring function.
•
Backlit-powered screen, more
measurement environment.
•
Smart power-off function, extending battery life.
•
Thin-tipped test lead (optional) to measure the pins of
small package device.
•
True RMS value available (only in PD-352 and
PD-350).
November 2015
with
two
multimeters
suitable
for
dark
Page 1
2 Setting Up
2.1
General Inspection
After you get a new multimeter, make a check on the
instrument according to the following steps:
1.
Check whether there is any damage caused by
Transportation.
If it is found that the packaging carton or the foamed
plastic protection cushion has suffered serious damage,
do not throw it away first till the complete device and
its accessories succeed in the electrical and mechanical
property tests.
2.
Check the Accessories.
The supplied accessories have been already described in
this Manual. You can check whether there is any loss of
accessories with reference to this description. If it is
found that there is any accessory lost or damaged,
please get in touch with the distributor of PROMAX
responsible for this service or the PROMAX local offices.
3.
Check the Complete Instrument.
If it is found that there is damage to the appearance of
the instrument, or the instrument can not work
normally, or fails in the performance test, please get in
touch with the PROMAX distributor responsible for this
business or the PROMAX local offices. If there is
damage to the instrument caused by the transportation,
please keep the package.
Page 2
November 2015
2.2
Install the Batteries
The multimeter is powered by two 1.5 V AA alkaline
batteries.
WARNING: To avoid false readings, which
could lead to possible electric
shock or personal injury, replace
the battery as soon as the low
battery indicator
appears.
Before replacing the battery, turn
off the meter, disconnect test
leads and any connectors from
any circuit under test, remove test
leads from the input terminals.
Use only the specified battery
type.
Use the following procedure to install the batteries.
Ensure that the rotary switch is at the
position.
Remove test leads and any connectors from the input
terminals.
Lift the tilt stand and loosen the screws with a
suitable Phillips screwdriver and remove the battery
cover.
Observe the battery polarity indicated inside the
battery compartment, Insert the batteries.
Place the battery cover back in its original position
and tighten the screws.
November 2015
Page 3
CAUTION:
2.3
To
avoid
instruments
being
damage from battery leakage,
always remove the batteries and
store them separately if the
multimeter is not going to be used
for a long period.
Adjusting the Tilt Stand
Pull the tilt- stand outward to its maximum reach (about
85 ° to the meter body).
2.4
Power On
To power ON the multimeter, turn the rotary switch to
any other position except
.
To power OFF the multimeter, turn the rotary switch
to the
position.
2.5
Sleep Mode
The multimeter automatically enters the sleep mode if the
rotary switch is not moved or a key is not pressed for
15 minutes. (When the Bluetooth is activated, this
function is disabled).
Pressing any key will turn the multimeter back to
operation mode from the sleep mode.
One minute before auto power-off, the buzzer will sound
“beep” five times to warn. Before it is shut off, the buzzer
will sound a long ”beep” then shut off.
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November 2015
NOTE:
2.6
In sleep mode, the multimeter will still consume
a little power. If the multimeter is not going to
be used for a long period, the power should be
turned off.
Backlight Control
To view the display in low-light conditions, you can
activate the LCD backlight by pressing
more than 2 seconds.
for
for more than
To turn off the backlight, press
2 seconds.
The backlight will last for 10 seconds.
2.7
Selecting the Range
Auto ranging is set as default when the meter is
is displayed.
powered on,
When auto ranging is enabled, press
the manual range mode.
to enter
In manual range, each additional press of
sets
the multimeter to the next higher range, unless it is
already in the highest range, at which point the range
switches to the lowest range.
When manual range is enabled, press
for
more than 2 seconds to enter the auto ranging mode.
Note: Manual range
capacitance.
November 2015
is
not
available
when
measuring
Page 5
2.8
Description
Front panel
Figure 1. Front Pannel
Page 6
November 2015
Rotary switch
Power off.
DC or AC voltage measurement.
DC or AC voltage measurement (up to 600
millivolts).
Continuity test, Capacitance measurement,
Diode test, Resistance measurement.
Frequency measurement.
Transistor measurement.
Temperature measurement.
DC or AC current measurement (up to 600
microamperes).
DC or AC current measurement (up to 600
milliamperes).
DC or AC current measurement.
Keypad
Select function:
Select DC or AC
Select °C or
measurements
°F
during
temperature
Select Resistance / Diode / Continuity /
Capacitance
Auto/Manual range.
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Page 7
Select frequency/duty cycle.
Capturing Max. and Min. Values.
Backlight, Data Hold.
Relative Measurements, Bluetooth (PD-352).
Display screen
Figure 2. Display screen.
Bluetooth enabled.
Auto range.
Maximum reading.
Minimum reading.
Page 8
November 2015
Data hold enabled.
Relative enabled.
Diode test selected.
Continuity test selected.
Battery is low.
DC.
AC.
Measurement display ("OL" is short for
overload, indicates the reading exceeds the
display range).
Measuring units.
Analog bar graph.
Measurement units
Sign
Description
M
Mega
1E+06 (1000000)
k
kilo
1E+03 (1000)
m
milli
1E–03 (0.001)
μ
micro
1E–06 (0.000001)
n
nano
1E–09 (0.000000001)
November 2015
Page 9
Sign
Description
°C
Degree Celsius
°F
Degree Fahrenheit
V
Voltage
A
Ampere
Current
Ω
Ohm
Resistance
Hz
Hertz
Frequency
%
Percent,
Duty cycle
F
Farad
Current Amplification
Factor
Capacitance
hFE
Measurement type
Temperature
Voltage
Transistor
Input terminals
The terminal connections for the different measurement
functions of the multimeter are described in the table below.
WARNING: Before
starting
any
measurement,
observe
the
rotary switch position of the
multimeter, and then connect
the test leads to the correct
terminals.
CAUTION:
Page 10
To
avoid
damaging
the
multimeter, do not exceed the
rated input limit.
November 2015
Rotary
switch
position
Input terminals
Overload
protection
750 VAC/1000
VDC
250 VDC or
Equivalent
voltage RMS
250 VAC or
Equivalent
voltage RMS
1 A / 250 V,
fast-acting
fuse
20 A / 250 V,
fast-acting
fuse
November 2015
Page 11
3 Measurements
3.1
Measuring AC or DC Voltage
WARNING: Do not measure any voltage of
over 1000 VDC or 750 VAC rms to
avoid instrument damage or
electric shock.Do not apply more
than 1000 VDC or 750 VAC rms
between the common terminal and
the
earth
ground
to
avoid
instrument damage or electric
shock.
This multimeter displays DC voltage values as well as their
polarity. Negative DC voltages will display a negative sign on
the left of the display.
DC voltage ranges are 60.00 mV, 600.0 mV, 6.000 V,
60.00 V, 600.0 V, 1000 V.
AC voltage ranges are 60.00 mV, 600.0 mV, 6.000 V,
60.00 V, 600.0 V, 750 V.
Rotate the rotary switch to
or
. Default is DC
measurement mode,
will be displayed. Press
will be
to switch into AC measurement mode,
displayed.
Connect the black test lead to the
the red test lead to the
terminal and
terminal.
Probe the test points and read the display. Press
to enable and cycle through the manual ranges.
Page 12
November 2015
3.2
Measuring Resistance
CAUTION:
To avoid possible damage to your
multimeter or to the equipment
under test, disconnect the circuit
power and discharge all highvoltage
capacitors
before
measuring resistance.
Resistance ranges are 600.0 Ω, 6.000 kΩ, 60.00 kΩ,
600.0 kΩ, 6.000 MΩ, and 60.00 MΩ.
Rotate the rotary switch to
.
Connect the black test lead to the
the red test lead to the
terminal and
terminal.
Probe the test points and read the display. Press
to enable and cycle through the manual ranges.
3.3
Testing Diodes
CAUTION:
To avoid possible damage to your
multimeter or to the equipment
under test, disconnect the circuit
power and discharge all highvoltage capacitors before testing
diodes
Rotate the rotary switch to
enter diode testing mode,
. Press
will be displayed.
Connect the black test lead to the
the red test lead to the
November 2015
once to
terminal and
terminal.
Page 13
Connect the red test lead to the positive terminal
(anode) of the diode and the black test lead to the
negative terminal (cathode). The cathode of a diode is
indicated with a band.
Read the diode forward bias. If the test lead
connection is reversed, the multimeter will display
"OL".
3.4
Testing for Continuity
CAUTION:
To avoid possible damage to your
multimeter or to the equipment
under test, disconnect the circuit
power and discharge all highvoltage capacitors before testing
for continuity.
Rotate the rotary switch to
to enter continuity
displayed.
testing
. Press
mode,
Connect the black test lead to the
the red test lead to the
twice
will
be
terminal and
terminal.
Probe the test points to measure the resistance in the
circuit. If the reading is below 30 Ω, the multimeter
will beep continuously.
Page 14
November 2015
3.5
Measuring Capacitance
CAUTION:
To avoid possible damage to the
multimeter or to the equipment
under test, disconnect circuit
power and discharge all highvoltage
capacitors
before
measuring capacitance. Use the
DC voltage function to confirm
that
the
capacitor
is
fully
discharged.
Capacitance ranges are 40.00 nF, 400.0 nF, 4.000 uF,
40.00 uF, 400.0 uF, 4000 uF.
Note: For the 4000 uF range, the measuring duration should
be over 30 seconds.
Rotate the rotary switch to
. Press
three
times to enter capacitance measuring mode, the
Farad units will be displayed.
Connect the black test lead to the
the red test lead to the
terminal and
terminal.
Probe the test points and read the display.
November 2015
Page 15
3.6
Measuring Frequency
Frequency ranges are 9.999 Hz, 99.99 Hz, 999.9 Hz,
9.999 kHz, 99.99 kHz, 999.9 kHz, and 9.999 MHz.
Rotate the rotary switch to
.
Connect the black test lead to the
the red test lead to the
terminal and
terminal.
Probe the test points and read the display.
Press
to switch between the frequency and
duty cycle measurements.
to
When measuring AC voltage or AC current, press
cycle through frequency measuring, duty cycle measuring,
and original measuring.
3.7
Measuring Transistor
WARNING: To avoid electrical shock or
damage to the instrument, do not
apply more than 250 VDC or
250 VAC rms between the
terminal
terminal.
Rotate the rotary switch to
and
the
.
Connect the “+” plug of the multi-functional test
socket to the
the
terminal).
Page 16
terminal and the “COM” plug to
November 2015
Determine whether the transistor is NPN or PNP type
and locate the Emitter, Base and Collector leads.
Insert leads of the transistor into the corresponding
holes of the multi-functional test socket.
Read the hFE value.
3.8
Measuring Temperature
Rotate the rotary switch to
Connect
the
red
thermocouple to the
connection to the
.
connection
of
the
K-type
terminal and the black
terminal.
Probe the test points and read the display. Press
to change the temperature units between
or
3.9
.
Measuring DC or AC Current
WARNING: Never attempt an in-circuit current
measurement where the opencircuit potential to earth is greater
than 250 V. Doing so will cause
damage to the multimeter and
possible electric shock or personal
injury.
November 2015
Page 17
CAUTION:
To avoid possible damage to the
multimeter or to the equipment
under test, check the multimeter’s
fuse before measuring current.
Use the proper terminals, function,
and range for your measurement.
Never place the test leads in
parallel with any circuit or
component when the leads are
plugged into the current terminals.
Current ranges are 600.0 μA, 6000 μA, 60.00 mA, 600.0 mA,
6.000 A, and 20.00 A.
Turn off the power of the measured circuit. Discharge
all high- voltage capacitors.
Connect the black test lead to the
terminal. For
currents below 600 mA, connect the red test lead to
the
terminal; for currents within 600 mA –
20 A, connect the red test lead to the
terminal.
Rotate the rotary switch to the appropriate position
according to the measurement range,
,
, or
.
Disconnect the circuit path to be tested. Connect the
black test lead to one side of the circuit (with a lower
voltage); connect the red test lead to the other side
(with a higher voltage). Reversing the leads will
produce a negative reading, but will not damage the
multimeter.
Select DC or AC measurement mode. Default is DC
measurement mode,
will be displayed. Press
to switch into AC measurement mode,
will be displayed.
Page 18
November 2015
Turn on the power of the measured circuit, and read
the display. Press
to enable and cycle through
the manual ranges. If "OL" is displayed, it indicates
the input exceeds the selected range and the rotary
switch should be set to the position with higher range.
Turn off the power of the measured circuit and
discharge all high-voltage capacitors. Remove the test
leads and restore the circuit to the original condition.
November 2015
Page 19
4 Tools
4.1
Data Hold Mode
Press
to
measurement,
Press
freeze
the
display
during
will be shown on the display.
again to exit this mode.
Note: This function is not available when measuring diodes
and transistor.
4.2
Capturing Max. and Min. Values
In MAX mode, the measured maximum value will be held; In
MIN mode, the measured minimum value will be held.
Press
MIN mode.
to cycle between the MAX mode and
Press
mode.
for more than 2 seconds to exit the
In this mode, the manual range mode will be activated
automatically. Analog bar graph is not displayed. Auto
power-off function is disabled.
Note: This function is not available when measuring diodes,
capacitance, transistor, and frequency.
Page 20
November 2015
4.3
Making Relative Measurements
When making relative measurements, reading is the
difference between a stored reference value and the input
signal.
Press
to
enter
the
relative
measurement value when pressing
as the reference value. In this mode, REL
reading) = input value - reference value.
mode.
The
is stored
(current
Press it again to exit the mode. In relative
measurement, the manual range mode will be
activated automatically. (The relative measurement
should be carried out under a certain range, that is,
this function is only available under the manual range
mode.) Analog bar graph is not displayed.
Note: This function is not available when measuring diodes,
transistor, and frequency.
4.4
Buzzer Feature
Press the function key, the buzzer will sound “Be…” in
short.
One minute before Auto Power-off the buzzer will
sound “beep” five times to warn. Before it is shut off,
the buzzer will sound a long ” beep” then shut off.
The buzzer will sound “beep…” continuously to warn
when the measured DC voltage is higher than 1000 V,
AC voltage is higher than 750 V, or the measured
DC/AC mV mode is higher than 600.0 mV.
November 2015
Page 21
The buzzer will sound long when the short circuit
resistance is less than about 30W during the
continuity test.
When the Bluetooth function is time out, the buzzer
will sound “beep” two times.
Page 22
November 2015
5 Bluetooth Function
(PD-351 and PD-352)
PD-351 and PD-352 multimeter supports communications
with Android based smart device through Bluetooth. You can
use the free application software on the Android based smart
devices to monitor the measurements, perform remote
control, view trending graphs, etc. The recorded data can be
saved as CSV file. More than one meters can be connect
simultaneously.
Note: Bluetooth connectivity works over a range of about 10
meters. The work range is much longer in open-sided
and non-occluded wide range environment, even up
to 20 meters. If the Bluetooth function in the
multimeter is idle for 10 minutes, the Bluetooth will
be turned off automatically. Before turning off, the
buzzer will sound “beep” two times.
5.1
System Requirements of Mobile Devices
Android devices with Bluetooth connectivity 4.0.
Android Versions: 4.4 and above.
5.2
Install the application software
Install
the
free
PROMAX
application
(Multimeter.apk), it can be downloaded from here:
software
Scan QR Codes below with your Android based smart
device to install the app.
November 2015
Page 23
Visit
www.promax.es/smartphone-apps/pd-35x
download APK file and install into the device.
to
Note: To allow the installation of this android application
from a place other than the official website of Google
"Play", on your mobile device go to "Settings" /
"Security" and enable the "Unknown sources" option.
5.3
How to Connect
Turn on the multimeter, press and hold
appear on the display.
Launch the application
until
.
Click the icon on the top left of the screen to launch
device connection.
Figure 3.
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November 2015
If the Bluetooth function is activated, skip this step; if
not, a dialog box (similar to figure below) will ask
whether to turn on Bluetooth. Click "Yes".
Figure 4.
Now, the blueetooh will try to detect the multimeter.
Click to scan to try again.
Figure 5.
November 2015
Page 25
In the list of devices should appear PD-351 or
PD-352. Select the right one to pair. After pairing a
confirmation message should appear on screen.
Figure 6.
You can repeat this procedure to connect the mobile
device to a second multimeter, by clicking on "No
device" on the top right of the screen and following
the steps described above.
Page 26
November 2015
5.4
User Interface
Figure 7.
Figure 8.
November 2015
Page 27
Function Description Table
Display
Function
DC
Direct Current
AC
Alternating Current
RES
Measuring Resistance
DIO
Testing Diodes
BEEP
Testing for Continuity
Display
Function
CAP
Measuring Capacitance
Hz
Measuring Frequency
DUT
Measuring Duty Cycle
hFE
Measuring Transistor
TEMP
Measuring Temperature
Page 28
November 2015
6 Operations
Customize the meter name
The device name of meter can be customized. Press and
hold the name on the top left of the scree, a dialog box
below will pop up. You can input the customized name,
this name will be memorized in the device. If this meter
is connected to the same device next time, the
customized name will be shown. If this meter is
connected to another device, the name is still the
default one or the customized name to the connected
device.
Figure 9.
Add meter: In double view, click
softkey.
Select meter: In single or double view, click
softkey.
or
Disconnect meter: In single or double view, click
or the meter name.
Remote Control: In single view, the control softkeys
(blue background softkeys, as Hold, Rel, Select, etc.)
can be short or long pressed to perform control, just as
press the corresponding keys of multimeter.
November 2015
Page 29
Voice out function
Provide an audible out of the readings through the textto-speech (TTS) engine on your Android device. Click
icon on the top right of the screen to turn on
the
voice out. Click
to turn off. In settings menu on your
Android device, you can set the language-specific voice
for the spoken text, or speech rate etc.
You may change to different voices by installing
different TTS engines.
About: Click
, and click "About", the following
interface is shown.
Figure 10.
Page 30
November 2015
Data Graph and Table: Click
to view data graph
and table. Click
to show setting menu.
Figure 11.
Setting menu
Softkey
Open local file
Save data
Share
Clear data
Setting
Exit
November 2015
Description
Read the saved file (.CSV)
Save the displayed data into .CSV
file
Share the measurements via the
installed sharing apps
Clear the data displayed
Sampling Interval: Set the
sampling
interval
in
the
application software.
Enable Period: Log data within
the defined period.
Record Period: Define the period
time if the period is enabled.
Fill: Check to fill the area as blue
below the data line.
Exit the APP
Page 31
Note: In trending graph, you can pinch the screen to zoom.
The Y axis (value) can be zoomed by gesturing along
the up-down direction, and the X axis (time) can be
zoomed by gesturing along the left-right direction.
Page 32
November 2015
7 Technical Specifications
All these specifications apply to the multimeter unless
otherwise explanation.
Standard conditions: The environment temperature is
18 ºC to 28 ºC, the relative humidity is less than 80%.
Function
DC
Voltage
(V)
AC
Voltage
(V)
mV
V
mV
V
μA
DC
Current
(A)
mA
A
μA
AC
Current
(A)
mA
A
Resistance (Ω)
Measurement
Range
Resolution
60.00 mV / 600.0 mV
60.00 mV / 600.0 mV
/ 6.000 V / 60.00 V
600.0 V / 1000 V
60.00 mV / 600.0 mV
60.00 mV / 600.0 mV
/ 6.000 V / 60.00 V
600.0 V / 750 V
600.0 μA
600.0 μA / 6.000 mA /
60.00 mA / 600.0 mA
/ 6.000A
20.00 A 1
600.0 μA
600.0 μA / 6.000 mA /
60.00 mA / 600.0 mA
/ 6.000 A
20.00 A1
0.01 mV
600.0
60.00
6.000
60.00
Ω / 6.000 kΩ/
kΩ / 600.0 kΩ/
MΩ / 10.0 0 MΩ
MΩ
Accuracy
0.1 mV
±(0.8%+2dig)
0.1 V
0.01 mV
1 mV
±(0.8%+2dig)
±(0.8%+2dig)
0.1 V
0.1 μA
±(1%+3dig)
±(0.8%+2dig)
±(0.8%+2dig)
0.01 mA
1 mA
0.1 μA
±(1.2%+3dig)
±(1%+3dig)
±(0.8%+2dig)
0.01 mA
1 mA
±(2%+3dig)
±(0.8%+2dig)
0.1 Ω
0.01 MΩ
±(2%+3dig)
1
When measuring current, for 10 A to 15 A, the measuring duration should not be over 2 minutes
within 10 minutes, and in this 10 minutes, no other current should flow through except within the
measuring duration; for 15 A to 20 A, the measuring duration should not be over 10 seconds within
15 minutes, and in this 15 minutes, no other current should flow through except within the measuring
duration.
November 2015
Page 33
Function
Measurement
Range
Resolu
-tion
nF
nF /
μF/ 40,00 μF
μF / 4000 μF 2
0.01 nF
Capacitance (F)
40.00
400,0
4,000
400.0
Frequency 3 (Hz)
9,999
99,99
999,9
9,999
99,99
999,9
9,999
Hz /
Hz /
Hz /
kHz /
kHz /
kHz /
MHz
Duty Cycle 4 (%)
F
0,1% - 99,9%
(Typical: Vrms=
1 V, f=1 kHz)
0.1 nF
±(2.5 %+3dig)
±(2.5 %+3dig)
0.1 μF
±(3 %+5dig)
1 mHz
±(0.8 %+2dig)
±(1.2 %+3dig)
0.1 %
0,1% - 99,9%
(≥1 kHz)
Temperature
(°C/°F)
Accuracy
±(2.5 %+3dig)
-50 °C to 400 °C
1 °C
±(2.5 %+3dig)
-58 °F to 752 °F
1 °F
±(4.5 %+5dig)
2
When measuring capacitance, for the 4000 uF range, the measuring duration should be over 30
seconds.
3
When measuring frequency, the typical waveform is Square or Sine. The signal meets the following
conditions.
Frequency
1 Hz – 4 MHz
4 MHz – 8 MHz
8 MHz – 10 MHz
4
Amplitude (rms)
100 mV
≥200 mV
≥300 mV
When measuring duty cycle, the typical waveform is Square.
Page 34
November 2015
Display
Frequency
Response (Hz)
6000
PD-351
(40 - 400) Hz
PD-352; PD-350
(40 – 10k) Hz
Sample rate for
digital data
3 times/second
Sample rate for
analog bar graph
30 times/second
Bluetooth
PD-351; PD-352
√
PD-350
Without
Auto ranging
√
True RMS
PD-352; PD-350
Diodes Test
√
Measuring
Transistor
√
Sleep Mode
√
Continuity Test
√
Low battery
indication
√(The "
Data Hold
√
Relative
Measurement
√
MAX/MIN Value
√
LCD Backlight
√
Analog bar graph
61 Segments
Input Protection
√
Input Impedance
10 MΩ
November 2015
" is displayed when the battery is
under the proper operation range.)
Page 35
Battery
3 V (1.5 V × 2) AA alkaline batteries
LCD Size
69 mm * 52 mm
Weight (without
package)
0.32 kg
Dimension
85 mm * 185 mm * 30 mm
Working
temperature
0 °C to 40 °C
Storage
temperature
-10C o 60 °
Relative Humidity
≤ 80%
Altitude
Operating: 3,000 m
Non-operating: 15,000 m
Note: Equipment specifications are set in these environmental
operating conditions. Operation outside these specifications
are also possible. Please check with us if you have specific
requirements.
RECOMMENDATIONS ABOUT THE PACKING
It is recommended to keep all the packing material in order to
return the equipment, if necessary, to the Technical Service.
Page 36
November 2015
8 Maintenance
8.1
Cleaning the multimeter
Wipe the case occasionally with a damp cloth. DO NOT use
chemicals, cleaning solvents, abrasives or detergents.
8.2
Replacing the battery
WARNING:
Disconnect all the test leads before initiating
the fuse replacement process. Power off the
instrument.
This meter is powered by a 6F22/LR22 or equivalent 9-volt
battery.
When the multimeter displays the " " the battery must be
replaced to maintain proper operation. Use the following
procedure to replacing the battery:
+
1. Remove the holster.
2. Unscrew and remove the rear panel with the aid of a
suitable Phillips screwdriver.
3. Remove the battery and replace it by a new one of 9V
6F22/LR22 type.
4. Back to placing the rear panel and screw it again.
5. Put the holster back in place.
November 2015
Page 37
8.3
Fuse replacement
WARNING:
Disconnect all the test leads before initiating
the fuse replacement process. Power off the
instrument.
Fuses are located inside the instrument. In order to replace them
you must follow these instructions:
1.
Remove the holster
2.
Unscrew and remove the rear panel using a Phillips suitable
screwdriver.
3.
Remove old fuses and replace them by the new ones.
Fuses must be:
1 A F250V
USING DIFFERENT TYPE OF FUSES COULD
DAMAGE THE INSTRUMENT.
4. Back to placing the rear panel and screw it.
5. Put the holster back in place
Page 38
November 2015
PROMAX ELECTRONICA, S. L.
Francesc Moragas, 71-75
08907 L’HOSPITALET DE LLOBREGAT (Barcelona)
SPAIN
Tel. : 93 184 77 00 * Tel. Intl. : (+34) 93 184 77 02
Fax : 93 338 11 26 * Fax Intl. : (+34) 93 338 11 26
http://www.promaxelectronics.com
e-mail: [email protected]